CN1860551A

CN1860551A - Write-once optical disc, and method and apparatus for recording/reproducing data on/from the optical disc

Info

Publication number: CN1860551A
Application number: CNA2004800284474A
Authority: CN
Inventors: 朴容徹
Original assignee: LG Electronics Inc
Current assignee: LG Electronics Inc
Priority date: 2003-10-20
Filing date: 2004-10-12
Publication date: 2006-11-08
Anticipated expiration: 2024-10-12
Also published as: CN1860551B; MY142736A; TWI298483B; AU2004282813B2; US8134896B2; JP2007509453A; TW200515380A; US20050083815A1; US20090196135A1; US7483355B2; AU2004282813A1; RU2382421C2; BRPI0414456A; EP1676277B1; CA2538059A1; RU2006108000A; WO2005038779A2; EP1676277A2; MXPA06002807A; KR100964685B1

Abstract

A write-once recording medium structure and an apparatus and method for recording final management information on the recording medium, are provided. The recording medium includes a temporary defect management area (TDMA) and a defect management area (DMA). The method includes transferring information recorded in the TDMA to the DMA of the recording medium and recording the transferred information in the DMA as final management information. The final management information includes at least one defect list and either space bit map information or sequential recording range information. The position information on one or all valid defect lists is recorded in the DMA.

Description

CD-WORM and being used at/the method and apparatus of recording/reproducing data from the CD

Technical field

The present invention relates to CD-WORM and be used for relating in particular to the detection directorial area that is used at CD-WORM and writing down the method and apparatus of final management information and utilize above-mentioned method and apparatus CD-WORM executive logging/reproduction at the/method and apparatus of recoding/reproduction management information from the CD.

Background technology

As a kind of optical record medium, the CD that can write down high capacity data just is widely used.In these CDs.Recently develop for example novel high-density optical record medium (HD-DVD) of blue light (Blu-ray) CD and so on, be used for long record and storage high-definition video data and high quality audio data.Blu-ray Disc is HD-DVD technology of future generation and optical recording solution of future generation, and compares with existing DVD, and it has the capacity of better storage data.Recently, formulated the international standard technical specification of HD-DVD.

Relevant therewith, following to rewrite Blu-ray Disc (BD-RE) standard, formulating the various standards of write-once Blu-ray Disc (BD-WO).

Fig. 1 has schematically shown the recording areas structure that can rewrite BD-RE.BD-RE shown in Figure 1 is the single-layered disk with a recording layer.Dish from it to outside comprise and introduce district, data field and draw-out area.The data field possesses and is arranged at interior spare area (ISA0) and outer spare area (OSA0) that internal diameter and outer radius are used to replace defect area respectively, and the user data area that is used for user data that provides between two spare areas.

If have defect area in user data area in the time can rewriteeing Blu-ray disc (BD-RE) identifying recording layer, the data that then are recorded in this defect area are transferred to the spare area and are recorded in a part of spare area (such as ISA0 or OSA0).This part spare area also is known as replaces the district.In addition, (DMA1～DMA4) is to carry out defect management to be recorded in the defect management that provides in introducing/draw-out area about the positional information in the positional information of defect area and corresponding replacement district.BD-RE have as the smallest record unit bunch.A cocooning tool has 32 sectors altogether, and a sector has 2048 bytes.Particularly, BD-RE distributes and uses 32 bunches as defect management (DMA).

Since can be in any zone of CD-RW overwriting data, so the whole zone of use dish and do not consider specific recording mode at random.In addition because can in defect management (DMA), write, wipe and even rewrite defect management information, also be inessential even smaller defect directorial area size is provided.

Fig. 2 shows the DMA structure of BD-RE among Fig. 1.From DMA1 to DMA4 each all has structure shown in Figure 2.In this, be stored in DMA that defect management information in the DMA1 also can be recorded in other in each (DMA2, DMA3 and DMA4) even so that when DMA is impaired, also can not lose these information and these information is available.

As shown in Figure 2, in can rewriteeing single-layered disk (BD-RE), DMA by altogether 32 bunches form.Four titles bunch (bunch 1 to bunch 4) of this DMA are provided, and as the zone of four dishes of duplicate record therein definition structure (DDS) information, one of them bunch is used for a DDS.Provide remaining bunch 5 to bunches 32 as a zone of writing down seven times defect list (DFL) therein, wherein four bunches are used for a DFL.

The various information that indicator administrative institute needs in DDS comprise the positional information (after this pointer DFL is called " P_DFL ") of notifying effective DFL position.Therefore, be intended to the defect area of this dish record and management under the situation as DFL, just this DFL be recorded in the DFL primary importance (bunch 5 to bunch 8) of DMA at data recording/reproducing device, and in described DDS record about the positional information (P_DFL) of this DFL.After this if will write down new DFL, this new DFL just is rewritten as in the primary importance (bunch 5 to bunch 8) of DFL.

Yet under the situation that continues the execution said process, the primary importance of described DFL (wherein having write down the zone of DFL) can become damage zone.At this moment just this new DFL is recorded in the DFL second place (bunch 9 to bunch 12) of effective described DMA, and in described DDS record about the positional information (new P_DFL) of this new DFL.Therefore, DFL the 3rd to the 7th position of this DMA (bunch 13 to bunch 32) at first remains on the not recording status of wherein not making record as yet, subsequently with regard to the next new DFL of journal.If for example the second place of DFL is impaired, (bunch 13 to bunch 16) locates to write down recently described DFL just in the 3rd position of DFL, and in described DSS record about the positional information (new P_DFL) of this new DFL.

Fig. 3 shows and has two recording layers the double-deck BD-RE structure of (layer 0 and layer 1).This dish has four DMA, and (DMA1～DMA4), each DMA has 64 bunches altogether.Two DMA that are positioned at layer 0 and layer 1 have partly formed a DMA.For example, DMA1 is made up of two the DMA parts (" DMA1 " and " DMA1 ") in layer 0 and the layer 1.

Fig. 4 shows the structure of each defect management of double-deck BD-RE among Fig. 3.As in individual layer BD-RE, the identical information of record in each DMA, and each DMA comprises that the DDS that is recorded in bunch 1 to bunches 4 in each, bunches 5 is to bunch reserved area at 8 places and be used to write down bunches 9 of DFL and arrive bunches 64.In the dual layer discs of Fig. 4, be based on Fig. 2 in individual layer DMA recording method same concept and make record, but different are to use 8 bunches (for example, bunches 9 to bunch 16) to write down a DFL and between DDS (bunch 1 to bunch 4) and DFL (bunch 9 to bunch 64), provide described reserved area.Provide bunches 9 to bunches 64 as a zone of writing down seven times defect list (DFL) therein, wherein 8 bunches are used for a DFL.

In above-mentioned rewritable disk, can in this coils any one posting field, make and rewriting so that recording mode is so unlimited.Yet in Write-once disc, write-once can only be carried out in any zone to dish, thereby not only limited recording mode more, made especially that also will be with data recording on such as the high density Write-once disc of BD-WO the time, defect management becomes a key factor.

Therefore, need a kind of characteristic that consider described dish characteristic such as write-once and in such as the Write-once disc of BD-WO the method for record and managing defect management information.In addition, can on dish, the situation of executive logging generally should distinguish mutually with " finally " situation of executive logging no longer.And the method that just needs in the case, a kind of record and managing defect management information.

Because the current situation that any publication rule of existing CD-WORM (for example CD-R, DVD-R) is not all proposed to carry out defect management, so a kind of new CD-WORM is carried out the new uniform rules of defect management with regard to being badly in need of, to reach the requirement that set forth above and described CD is associated.

Summary of the invention

Therefore, the present invention relates to a kind of CD-WORM, and the apparatus and method that are used for the final management information of record on this CD, they have been eliminated substantially by the restriction of prior art and the caused one or more problems of shortcoming.

One object of the present invention is to provide a kind of structure of CD-WORM of effective execution defect management.

Another object of the present invention is to provide a kind of when the time, promptly finish and write fashionablely, be used for writing down the method for final management information at defect management when this CD no longer at the CD-WORM identifying recording layer.

Another purpose of the present invention is to provide a kind of and is used for CD and whether finishes record and the reproducting method that writes and change according to this CD.

Other advantage of the present invention, purpose and characteristics are set forth part in the following description, and part will be that those of ordinary skills are apparent by the examination of following content or by enforcement of the present invention.Purpose of the present invention and other advantage can realize by the structure that particularly points out in following description and claims and the accompanying drawing and obtain.

According to an aspect of the present invention, a kind of method that writes down final management information on once writing recording medium is provided, this recording medium comprises temporary defect management area (TDMA) and defect management (DMA), and this method comprises: the DMA that the information in the TDMA of being recorded in is sent to recording medium; And this transmission information of record is as final management information in DMA, final management information comprises any of at least one defect list and space bitmap information or journal range information, and wherein recording step is included in the DMA stored about the positional information from an effective defect list that is recorded at least one defect list in the DMA.

According to another aspect of the present invention, a kind of method that writes down final management information on once writing recording medium is provided, described recording medium comprises temporary defect management area (TDMA) and defect management (DMA), and described method comprises: the DMA that the information in the TDMA of being recorded in is sent to this recording medium; And record transmission information is as final management information in described DMA, this final management information comprises any of a plurality of defect lists that are replicated and space bitmap information or continuous recording range information, and wherein said recording step is included in the DMA stored about the positional information from all effective defect lists that are recorded in the replication defective tabulation among the described DMA.

According to another aspect of the present invention, provide a kind of once writing recording medium, comprising: at least one recording layer; And temporary defect management area (TDMA) on this at least one recording layer and defect management (DMA), wherein send the information be recorded in the TDMA and it is recorded in the DMA as the final part of management information, and this final management information comprises any of at least one defect list, space bitmap information or continuous recording range information and about the positional information from an effective defect list that is recorded at least one defect list among the described DMA.

According to another aspect of the present invention, provide a kind of once writing recording medium, comprising: at least one recording layer; And temporary defect management area (TDMA) on this at least one recording layer and defect management (DMA), wherein send the information be recorded in the TDMA and it is recorded in the DMA as the final part of management information, and this final management information comprises a plurality of defect lists that are replicated, space bitmap information or continuous recording range information any, and about the positional information from all effective defect lists that are recorded in the replication defective tabulation among the described DMA.

According to another aspect of the present invention, provide a kind of device that writes down final management information on once writing recording medium, described recording medium comprises temporary defect management area (TDMA) and defect management (DMA), and described device comprises: the recoding/reproduction unit; And the controller that is used for controlling recording/reproduction units, this controller handle is recorded in the DMA that the interior information of TDMA sends to this recording medium, and record transmission information is as final management information in described DMA, and wherein this final management information comprises any of at least one defect list, space bitmap information or continuous recording range information and about the positional information from an effective defect list that is recorded at least one defect list among the described DMA.

According to another aspect of the present invention, provide a kind of device that writes down final management information on once writing recording medium, described recording medium comprises temporary defect management area (TDMA) and defect management (DMA), and described device comprises: the recoding/reproduction unit; And the controller that is used for controlling recording/reproduction units, this controller handle is recorded in the DMA that the interior information of TDMA sends to this recording medium, and record transmission information is as final management information in described DMA, wherein this final management information comprises any of a plurality of defect lists that are replicated, space bitmap information or continuous recording range information, and about the positional information from all effective defect lists that are recorded in the replication defective tabulation among the described DMA.

Should be understood that above general description of the present invention and following detailed description are exemplary and explanat and aim to provide stated of the present invention and further specify.

Description of drawings

Accompanying drawing shows embodiments of the invention, and has explained principle of the present invention with describing, comprising accompanying drawing to provide the present invention is further understood, and be included in wherein and form the application's a part.In the accompanying drawings:

Fig. 1 is the synoptic diagram that shows individual layer BD-RE according to correlation technique;

Fig. 2 is the synoptic diagram that shows DMA structure among the BD-RE of Fig. 1 according to correlation technique;

Fig. 3 is the synoptic diagram that shows double-deck BD-RE structure according to correlation technique;

Fig. 4 is the synoptic diagram that shows DMA structure among the BD-RE of Fig. 3 according to correlation technique;

Fig. 5 is according to one embodiment of present invention, shows the synoptic diagram of individual layer CD-WORM structure;

Fig. 6 is according to one embodiment of present invention, shows the process flow diagram of the recording/reproducing method that is used for CD-WORM;

Fig. 7 is according to one embodiment of present invention, shows the synoptic diagram of DMA structure of the individual layer CD-WORM of Fig. 5;

Fig. 8 is according to one embodiment of present invention, shows the synoptic diagram of DMA structure of the individual layer CD-WORM of Fig. 5;

Fig. 9 is according to one embodiment of present invention, shows the synoptic diagram of the dual-layer optical write-once disc structure of Fig. 5;

Figure 10 is according to one embodiment of present invention, shows the synoptic diagram of the dual-layer optical write-once disc DMA structure of Fig. 9;

Figure 11 is according to one embodiment of present invention, shows the synoptic diagram of the dual-layer optical write-once disc DMA structure of Fig. 9; And

Figure 12 shows the synoptic diagram that is used for according to the recording/reproducing method of CD-WORM of the present invention.

Embodiment

Now will be in detail with reference to the preferred embodiments of the present invention, its example is shown in the drawings.As possible, in whole accompanying drawing, use identical Ref. No. to come with reference to same or analogous part.

For convenience of description, CD-WORM is illustrated as write-once Blu-ray disc (BD-WO).

Term of the present invention has utilized popular term as much as possible.Yet under concrete condition, term is chosen wantonly by the inventor.In the case, if, understand the present invention with regard to should be appreciated that, and not only consider the simple name of these terms with these terms that is defined corresponding to the meaning of these terms of instructions specific definition.

Not only comprise the spare area that is used for defect management according to CD-WORM of the present invention, also comprise the defect management (DMA) that was used for before this dish finishes to write the temporary disk (T-disk) directorial area (TDMA) of records management information thereon and is used for writing the final management information of fashionable record in this dish end.

Below will be according to one embodiment of present invention, the structure of individual layer CD-WORM (BD-WO) shown in Figure 5 is made detailed description.

Referring to Fig. 5, CD-WORM has single-recordng-layer, comprises introducing district 60, data field 70 and draw-out area 80.Data field 70 comprises interior spare area (ISA0), user data area 71 and outer spare area (OSA0).

Because CD-WORM originally just must comprise many zones of writing down various management information thereon, so it comprises a plurality of temporary defect management area or temporary disk (T-disk) directorial area (after this being called " TDMA ") and comprises the defect management (after this being called " DMA ") that is used for writing in this dish end the final management information of fashionable record.In the introducing district 60 of dish and draw-out area 80,4 DMA are provided (DMA1～DMA4).

As mentioned above, temporary defect management area TDMA has and mixes and write down Routine Management information and defect management information on it.Routine Management information comprises the recording status of dish, and can create defect management information usually when using this CD.If writing of this dish finished, then this dish just is in the state of no longer making record (for example to user data area).Therefore, be recorded in the DMA as final management information sending from the management information of TDMA and with it.Therefore, the use of TDMA and DMA being depended on whether this dish of this write-once is finished writes.

Usually TDMA is divided into two classes: have fixed size (for example 2048 bunches) and be positioned at main " TDMA " (after this being called " PTDMA ") of introducing the district; And have variable-size and be arranged in additional " TDMA " (after this being called " ATDMA ") of the outer spare area (OSA0) of spare area, data field.Respectively with example PTDMA0 and ATDMA0 in its called after Fig. 5 structure.

Therefore, temporary defect management area of the present invention (TDMA) can be PTDMA or ATDMA.When using term " main temporary defect management area (PTDMA) " and " additional temporary defect management area (ATDMA) ", should be appreciated that they refer to PTDMA and ATDMA respectively.The PTDMA0 of fixed size (for example 2048 bunches) was distributed to inevitably in this dish starting stage introduces district 60, and ATSMA0 can optionally be assigned with or even can not distribute.On this dish, during the range of distribution, can differently determine the size (P1) of ATDMA0.Consider the size (N1) of spare area (OSA0), the size of specified ratio (for example P1=N1/4) can be very suitable.

That is to say that CD-WORM of the present invention also comprises a plurality of temporary defect management area (TDMA) except that defective directorial area (DMA).Temporary defect management area (TDMA) comprises PTDMA that distributes to fixed size and the ATDMA that distributes to concrete spare area and have variable-size." management information " in the term that the present invention uses is named and is used to comprise " defect management information " and/or " Routine Management information ".Thereby defect management information comprises and is used for the managing defect zone position and replaces the information that zone position is managed this disc defect district accordingly.Routine Management information comprises other management information except disc defect management information, for example as difference coil recording areas or not recording areas with information of representing recording status or the like.CD-WORM according to the present invention comprises and is used to manage this to coil any zone be recording areas or the not information of recording areas.After this, will be in following detailed description according to management information of the present invention.

In the PTDMA of this dish and ATDMA, write down identical management information, but Fig. 5 only shows in detail the management information that is recorded in the PTDMA0 for convenience.

Still with reference to figure 5, management information is divided three classes substantially.The first kind as defect management information is to be used for the temporary defect list (TDFL) of recording defect tabulation with the managing disc defect district.Second class as Routine Management information is journal range information (SRRI) and the space bit map (SBM) that is used for the indicating panel recording status.The 3rd class is to have comprised that defect management and Routine Management are to write down the temporary disk (T-disk) definition structure (TDDS) that this coils various necessary informations.

Usually do not use SRRI and SBM simultaneously.If on dish, use journal, then SRRI be recorded in the TDMA (for example PTDMA0, ATDMA0 or the like).If but on dish, use recorded at random, then SBM is recorded in the TDMA.In addition, as long as need renewal, just records management information in TDMA.Yet, because always lastest imformation should be recorded in the TDDS, so TDDS is with TDFL that always is updated or SRRI (or SBM) record.The information that is recorded in the TDDS for example can be TDFL (or SRRI or SBM) as positional information and renewal and so on.

No longer include under the remaining situation in dish recording areas (being user data area),, perhaps under the user does not rethink situation at disc recording, just finish writing of this dish just not further at the enterprising line item of temporary defect management area.At this moment, the more new administration information that finally is recorded in the interior management information of temporary defect management area (TDMA) just is sent out and is recorded in defect management (such as the DMA of DMA1) as final management information.The identical management information of record in each DMA1～DMA4 promptly is stored in the information among the DMA and is accurately duplicating of the information among each other DMA of being stored in.

Fig. 6 is according to one embodiment of present invention, shows the process flow diagram of the recording/reproducing method that is used for CD-WORM (such as Fig. 5 BD-WO), especially shows how to carry out data reproduction with reference to finishing to write to coil.The method that should be realized that Fig. 6 also can be used for after a while with reference to figure 7 equivalently to BD-WO that Figure 11 discussed.

Referring to Fig. 6, at first determine whether to have finished writing (S10) when this dish when coiling the reproduction data.Dish writes situation about finishing and for example comprises: no longer include recording areas (for example user data area) residue, no temporary defect management area, user on the dish and do not rethink in the disc recording data, receive dish from user or main frame and write and finish order or the like.Write if finish dish, record just no longer occurs user data area.

Do not finish under the dish situation about writing at step S10 place, just from coiling effectively reproduction data (S21), and the management information (S22) of duplicate record generation in temporary defect management area (TDMA).

If determining to finish dish, step S10 writes, just the final management information of record in defect management (DMA).Following this process will be discussed.

When to finish dish write fashionable, just detect and more new administration information (for example latest management information) that checking is finally write down temporary defect management area (TDMA) in (S31).TDFL, the SSRI (or SBM) that had discussed before management information comprises, TDDS or the like.Just go up subsequently latest management information is sent and is recorded in the defect management (for example DMA1 or DMA2 or DMA3 or DMA4) as the final management information of coiling from TDMA (for example PTDMA or ATDMA).More specifically, send up-to-date TDFL and it is recorded in the DFL district of DMA as DFL, send up-to-date TDDS and it is recorded in the DDS district of DMA as DDS.Send up-to-date SRRI (or up-to-date SBM) and it is recorded in SRRI (or SBM) district of DMA.The content of duplicating a DMA is in other each DMA.

When being recorded in the DFL district as transmission TDFL and with it, with regard to the DFL of detection record is effectively or (S32) that damage, thereby only the positional information in the record effective DFL district is as positional information (P_DFL) (S33) in DDS, and dish write finish after, only be activated (S34) from the reproduction of this dish operation.Can use prior art (such as by checking signal characteristic from this panel or the like) to finish and determine among the similar step S32 whether specific extent is damaged or defective process.

Following will being described in detail in the recording/reproducing method of Fig. 6 with reference to figure 7 and Fig. 8 is used for writing step S32 and the S33 that writes down final management information when finishing at dish.

Fig. 7 is according to one embodiment of present invention, shows the synoptic diagram of each DMA structure of BD-WO shown in Figure 5.In this embodiment, the positional information (P_DFL) that has defined position or the location of effective DFL is recorded in the DDS to be used for all effectively DFL.

Referring to Fig. 7, thereby DMA has identical size (for example 32 bunches) with the DMA of all BD-RE that has single-recordng-layer as shown in Figure 2 guarantees compatibility with this BD-RE on the dish same position, but because " write-once " characteristic of following BD-WO makes recording mode different.

At first, to finish at the step S10 place of Fig. 6 when dish and to write fashionablely, just check and the renewal TDFL of transmission temporary defect management area (TDMA) and it is recorded in the DFL district of defect management (DMA).DMA bunches 5 to bunches 32 in duplicate record 7 times should renewal TDFL (up-to-date TDFL).In Fig. 7, the numbering 61 to 67 respectively the expression duplicate DFL first to the 7th position.For example, can be in bunches 5 to bunches 8, in bunches 9 to bunches 12, in bunches 13 to bunches 16, duplicate DFL in bunches 17 to bunches 20.Like this, be used to write down these bunches group of duplicating DFL and be also referred to as the DFL district at this.For example, bunches 13 to bunches 16 is DFL districts and bunches 17 to bunches 20 are another DFL districts.

In step S32, check whether defectiveness of each DFL district.If determine this DFL district zero defect, be the DFL area definition of this record active zone just.If determine this DFL district defectiveness, just it is defined as and damages the district.The position in each effective DFL district of record in DDS.Fig. 7 show with DFL second, third, the 4th and the 6th position (62,63,64 and 66) be defined as active zone and each positional information of these active zones all be recorded in situation in the DDS.And this available distinct methods is finished.

According to a kind of method, can in the specific DFL district of DMA, write down DFL.After record, system just at once verifies whether defectiveness of this DFL district that has write down.If this DFL district zero defect that has write down of system verification, this system just records this positional information that has write down the DFL district in the DDS of DMA subsequently, and DFL is being copied in the next DFL district subsequently.If this DFL district defectiveness that has write down of system verification does not just record this positional information that has write down the DFL district in the DDS of DMA subsequently, but will copy in the next DFL district of DMA by DFL.Repeat 7 these identical DFL of duplicate record in the DFL district that this process makes at DMA.

According to another kind of method, can this DFL of duplicate record in each of 7 DFL districts and then system can verify each defectiveness whether in 7 DFL districts.After the group checking, just the positional information in any effective DFL district can be recorded in the DDS.

The positional information in DFL district also can be called as " P_DFL " or " PSN of defect list ", and can be used for indicating a specific region, wherein in this regional stem physical sector number (PSN) is arranged.Use to this term can be applied to every other embodiment of the present invention equivalently.

As shown in Figure 7, be not only the content of up-to-date TDDS is sent and is recorded in the DDS of DMA, and the positional information (P_DFL) about effective DFL is recorded in the DDS of DMA.Same TDDS can be included in the zone of the positional information (P_DFL) that wherein can write down about effective DFL.However, do not need this zone of this TDDS because write before finishing, so can use this zone of coming original records TDDS such as the meaningless information of " 00h " or " FFh " at dish.

In example shown in Figure 7, DSS (the up-to-date TDDS that is sent out) and up-to-date SRRI (or SBM) have been stored in bunch 1.Bunch 1 content is repeated to be stored in bunches 2, in bunches 3 and bunches 4.In such as bunch 1 one bunch, can in sector 0, store DDS and in sector 1 to 31, store SRRI/SBM; Perhaps can in the sector 0 to 30 of this bunch, store SRRI/SBM and in sector 31, store DDS.

DDS comprises can write down the zone 50 of 7 fragment position information (P_DFL) altogether therein.More specifically, in this zone 50 PSN of storage defect tabulation #1 to the PSN of defect list #7.In this embodiment, in zone 50, only store the PSN of effective DFL.In the example of Fig. 7, suppose DFL second, third, the 4th and the 6th position is effective, so the positional information of having only these active zones, then is not recorded in the DDS about the positional information of remaining damage DFL in the zone 50 of DDS by journal.

For example, zone 50 stored of DDS: the PSN (51) of defect list #1, its recognizing site (PSN) is in bunch 9 effective DFL districts (62) to bunch 12 places; The PSN (52) of defect list #2, its recognizing site (PSN) is in bunch 13 next effectively DFL districts (63) to bunch 16 places; The PSN (53) of defect list #3, its recognizing site (PSN) is in bunch 17 next effectively DFL districts (64) to bunch 20 places; The PSN (54) of defect list #4, its recognizing site (PSN) is in bunch 25 next effectively DFL districts (66) to bunch 28 places.The DFL first that damages, the 5th and the 7th position (61,65 and 67) just are not stored in the DDS.Can use such as some predetermined values of " 00h " or " FFh " and come not use part in the posting field 50.

Therefore, if all 7 DFL districts that write down of DMA all are active zones, then the position in each effective DFL district of sequential storage in zone 50 just subsequently makes that existence is about 7 positional information fragments of DFL in DDS.Damage the district if make all 7 of DMA write down the DFL district for some reason, then 7 positional informations about DFL all are registered as " 00h " or " FFh " in the zone 50 of DDS.In the case, because going up to exist, dish has 4 defect managements (DMA) that are recorded in the identical information in each DMA, so can from unspoiled other DMA, read the effective information of DFL redundantly.The result is that this programme has been protected important management information.

As final management information, SRRI (or SBM) is recorded in the BD-WO together with DDS.BD-RF shown in Figure 2 according to prior art does not write down SRRI (or SBM) as management information in DDS, but have DDS bunch the residue sector in write down meaningless information (" 00h " or " FFh ").

According to structure shown in Figure 7, finish under the situation about writing at CD, data recording/reproducing device (for example equipment shown in Figure 12) reads the location/position information (P_DFL) about first effective DFL district from the DDS of corresponding D MA, to visit the DFL at the first active position place.If find defective or the like at this first active position place, this device just reads about the positional information (P_DFL) in the effective DFL of next one district and visits the DFL that is positioned at by the second active position place of positional information (P_DFL) identification.This scheme can compensate even write at dish and write effective DFL district of definition when finishing at dish and cause afterwards by the problem of coiling original effective DFL district that scratch etc. damaged owing to using continuously after finishing.

Fig. 8 is the synoptic diagram of each DMA structure that shows the BD-WO of Fig. 5 according to a further embodiment of the invention.DMA among Fig. 8 among the structure of DMA and use and Fig. 7 is equal to, except only in DDS record all be optional about the positional information (P_DFL) in an effective DFL of DMA district and any subsequent duplicate of DFL being recorded in other DFL districts of DMA.

More specifically, in the embodiment of Fig. 8, in DFL being recorded in the specific DFL of DMA district after, this system just verifies whether the DFL of the record district of DMA is active zone.If then this system just records the positional information (P_DFL) about this effective DFL district in the zone 55 of DDS subsequently.Just stop this process subsequently.Can randomly or forcibly, system can record this DFL in the next DFL district of DMA.Even if but in this case, also the positional information about these ensuing DFL districts is not recorded in the DDS, thereby in DDS, only keep a positional information.In example shown in Figure 8, even there is the active position (62,63,64 and 66) of 4 DFL, but just being recorded in the zone 55 of DDS about the positional information of the DFL second place (promptly bunch 9 to bunch DFL at 12 places the one PSN).

As mentioned above, though can be in bunches 5 to bunches 32 7 DFL of duplicate record, still can write down this DFL in the mode that when obtaining the active position in a DFL district, in the residue of DMA bunch, does not write down DFL.

As an example, send up-to-date TDFL and it is recorded in the DFL district 61 (bunch 5 to bunch 8) of DMA.If be checked through this zone and be defective/damage district, still send up-to-date TDFL subsequently and it is recorded in the next DFL district 62 (bunch 9 arrive bunch 12) of DMA.If checking this zone is zero defect/active zone, just the positional information about this effective DFL district 62 is recorded among the DDS subsequently.At this moment, can not carry out and send nearest TDFL and it is recorded in the operation in remaining DFL district 63 to 67 (bunch 13 arrive bunch 32).Instead, these remaining area can be recorded as " 00h " or " FFh ", or some other designated value/mode.The positional information (51) about one first effective DFL district 62 only is stored in the DDS of DMA.

As mentioned above, up-to-date TDFL is not transmitted and is recorded in benefit in all DFL districts of DMA and be because of can shortening writing time, write and need not Undue Delay so just can finish rapidly to coil.Only record is still can protect well and can obtain this final management information when needed from other DMA about the reason of a positional information (P_DFL) fragment in effective DFL district in the DDS of DMA.

Fig. 9 shows the embodiment that has expanded notion of the present invention therein and be applied to have the double-layer CD of two recording layers to Figure 11.The method of Fig. 6 also can be applied to the double-layer CD of Fig. 9 in Figure 11 equivalently.

More specifically, Fig. 9 shows double-deck synoptic diagram such as the CD-WORM of BD-WO according to one embodiment of the invention.Dual-layer optical write-once disc comprises first recording layer (layer 0) and second recording layer (layer 1), and they all have district, data field and the draw-out area of introducing.Recording layer comprises PTDMA0 (layer 0) and the PTDMA1 (layer 1) that has fixed size separately respectively.Can in the data field, distribute four spare areas fully.Spare area ISA0 and outer spare area OSA0 in the inner edge of first recording layer (layer 0) and outer rim are distributed, and in the inner edge of second recording layer (layer 1) and outer rim distribution spare area ISA1 with outside spare area OSA1.

ATDMA can exist only within OSA0, OSA1 and the ISA1, and respectively with them called after ATDMA0, ATDMA1 and ATDMA2.In Fig. 9, alphabetical N, P, Q and L have represented the information of expression respective regions size.The size (P2) of expecting each ATDMA0 and ATDMA1 especially is about 1/4 of OSA0/OSA1 size (N2).The size (Q) of expectation ATDMA2 is about 1/4 of ISA1 size (L).This determines under certain rule, and it is evident that can be the required difference sizes of these region allocation.

Can be in PTDMA (PTDMA0 and PTDMA1) and ATDMA (ATDMA0 and ATDMA1) the identical management information of record; But Fig. 9 only shows in detail the management information that is recorded in the PTDMA1 for convenience.Be recorded in TDFL, TDDS that these PTDMA/ATDMA management information in each comprises that above-mentioned contact single-layered disk structure discusses, SRRI (or SBM) or the like.

Be similar to the single-layered disk structure, in dual layer discs structure according to the present invention, finish writing of this dish and for example comprise and no longer include remaining situation as the fruit tray recording areas, if the situation that does not have temporary defect management area to exist, if perhaps the user would not rethink situation at disc recording.At this moment, the recent renewal management information that is recorded in the temporary defect management area just is sent out and is recorded in defect management (DMA) as final management information.

Figure 10 is the structural representation that shows each DMA in the dual-layer optical write-once disc of Fig. 9 according to one embodiment of the invention.The DMA structure of double-layer CD and use the single-layer optical disc be equal among Fig. 7 among Figure 10, except the size of DMA is 64 bunches, bunches 5 to bunches 8 are retained and write down each DFL (rather than in the single-layered disk 4 bunches) in 8 bunches of DMA.So as shown in figure 10, record is about the positional information of all effective DFL in the DDS of DMA.

Figure 11 is the structural representation that shows each DMA in the dual-layer optical write-once disc of Fig. 9 according to a further embodiment of the invention.The DMA structure of double-layer CD and use the single-layer optical disc be equal among Fig. 8 among Figure 11, except the size of DMA is 64 bunches, bunches 5 to bunches 8 are retained and write down each DFL (rather than in the single-layered disk 4 bunches) in 8 bunches of DMA.So as shown in figure 11, only in the DDS of DMA, write down positional information about an effective DFL.As mentioned above, though bunch 7 DFL of 9 to 16 place's duplicate records in DMA as shown in figure 11, also can be in case in DMA, stop record under the situation of an effective DFL of record to DFL.That is to say in a single day the duplicate record process to DFL after writing down effective DFL can be character that choose wantonly or compulsory according to the present invention.Below with reference to figure 8 discussed in DMA to this of follow-up DFL optional/force record.

Figure 12 shows the view that can realize the data recording/reproducing device of the inventive method therein.Method according to the present invention also can use other equipment or system to realize.

With reference to Figure 12, data recording/reproducing device comprises the recoding/reproduction part 10 that is used for to such as CD-WORM executive logging/reproduction of BD-WO, and the control section 20 that is used for controlling recording/reproduction operation.Control section 20 transmits the record order that is used for concrete zone on the described dish or reproduces order to data recording/reproducing device 10.Recoding/reproduction unit 10 is carried out described recoding/reproduction according to the order of control section 20 to concrete zone.Recoding/reproduction unit 10 comprises the interface unit 12 that allows with external device communication; To the video disc recording data or from the pickup unit 11 of optical disc replay data; Data processor 13, it is used to receive and reverts to expected signal value from the reproducing signal of pickup unit 11 and with it or be used for the signal that will write down is modulated into to be suitable for being recorded in being used to the signal that transmits on the CD; Servo unit 14, its control pickup unit 11 is accurately to read the specific region on the CD or signal accurately is recorded in specific region on the CD; Storer 15, it is used for the various information that interim storage has described management information and data; And microcomputer or processor (micro computer) 16, be used for the structural detail of controlling recording/reproduction block 10.The all component of this data recording/reproducing device is coupled on all operating.

The CD of the present invention that records management information thereon is written under the situation of data recording/reproducing device shown in Figure 12, and following will the detailed description in detail uses this data recording/reproducing device to be used for optical disc recording/reproducing method.

Data recording/reproducing device shown in Figure 12 can be as mentioned above at the disc recording defect management information.For example dish structure and use based on the above discussion, microcomputer 16 can be controlled pickup unit 11 defect management information is recorded in the TDMA and DMA of dish.

If CD is written into this data recording/reproducing device, then the microcomputer 10 of recoding/reproduction unit 10 just determines to be written into the directorial area of CD.At first, determine that defect management (DMA) is to check whether respective disc is to finish to write dish.If for example in defect management (DMA), write down information, just determine that respective disc is to finish to write dish, if but recorded information not in the defect management (DMA) just determines that respective disc is not finish to write dish.

If determine that dish is to finish to write dish, then in defect management (DMA), record the final management information of dish.Therefore just from defect management (DMA), obtain final management information to be used to reproduce this dish.In this regard, just can from the DDS of DMA, obtain positional information fast about effective DFL district.Just visit and reproduce DFL from the indicated position of the positional information of obtaining subsequently, and check the DFL information of this reproduction once more.If become defective damage district thereafter because check result is determined the DFL that is recorded in the active zone, then as Fig. 7 or shown in Figure 10ly in a DMA, under the situation of a plurality of positional informations of record (P_DFL), obtain flawless DFL by obtaining about the next effectively positional information (P_DFL) of DFL of storage DFL.Under as Fig. 8 or the situation that only writes down a positional information (P_DFL) fragment in a DMA shown in Figure 11, addressable other DMA is to obtain flawless DFL.

For other final management information, also can from DMA, effectively obtain DDS, SRRI etc.Similarly, if determine a certain specific region defectiveness of DMA, the next zone of just checking duplicate record is to obtain flawless final management information.

If be written into the dish of this device is not finish to write dish, then the current management information of indicator in temporary defect management area (TDMA).Thereby the more new administration information (being latest management information) of just obtaining in the case, nearest record from temporary defect management area (TDMA) is to read the final entry state of this dish.This just makes that carrying out effective recoding/reproduction on CD-WORM becomes possibility.When executive logging/reproduction or after finishing recoding/reproduction, require the renewal of management information and this dish not to finish as yet under the situation about writing, just the management information upgraded of record.Finish under the situation about writing requiring to coil, then the method according to this invention writes when finishing at dish final management information is recorded in the defect management (DMA).

As mentioned above, the present invention has the advantage of finishing effective recoding/reproduction for CD-WORM, and this is that record is realized about the whole bag of tricks of the positional information (P_DFL) of effective DFL when writing down final management information by the defect management that is provided at CD-WORM (DMA) is interior.

It should be appreciated by those skilled in the art and to make various modifications and change in the present invention.Therefore, the invention is intended to cover these modifications of the present invention and modification, as long as they are within the scope and full scope of equivalents thereof of claims.

Commercial Application

The present invention relates to the write-once CD and be used at write-once CD record or therefrom obtain number According to method and apparatus. According to an aspect of the present invention, providing a kind of remembers at once writing recording medium Record the method for final management information, this record medium comprises temporary defect management area (TDMA) and defective management District (DMA), this method comprises: the information that is recorded in the TDMA is sent to the DMA that records medium; And this transmission information of record is as final management information in DMA, and final management information comprises that at least one lacks Fall into tabulation and space bitmap information or record any a kind of of range information in proper order, wherein recording step is included in Storage is about from an effective defect list that is recorded at least one defect list in the DMA in the DMA Position information.

It should be appreciated by those skilled in the art and to make in the present invention various modifications and change. Therefore, originally The invention intention covers these modifications of the present invention and modification, as long as the scope that they are in claims reaches Within its full scope of equivalents.

Claims

One kind on once writing recording medium the record final management information method, described recording medium comprises temporary defect management area (TDMA) and defect management (DMA), described method comprises:

The information in the TDMA of being recorded in is sent to the DMA of described recording medium; And

Record transmission information is as final management information in described DMA, and described final management information comprises any of at least one defect list and space bitmap information or journal range information,

Wherein said recording step comprises:

In the DMA stored about positional information from an effective defect list that is recorded at least one defect list in the DMA.
2. the method for claim 1 is characterized in that, in described storing step, is only about the positional information from the first effective defect list that is recorded at least one defect list in the described DMA about the positional information of an effective defect list.
3. the method for claim 1 is characterized in that, described final management information also comprises dish definition structure (DDS) information that is recorded in the described DMA.
4. method as claimed in claim 3 is characterized in that, in described storing step, stores the part of described positional information about an effective defect list as described DDS information.
5. the method for claim 1 is characterized in that, in described storing step, described positional information about an effective defect list is first physical sector number of a described effective defect list.
6. the method for claim 1 is characterized in that, in described forwarding step, described recording medium is individual layer recording medium or dual-layer recording medium.
7. the method for claim 1 is characterized in that, described recording step comprises:

Recording defect tabulation in the defect list district of described DMA;

Whether the defect list district that write down of checking defectiveness; And

If it is flawless that verification step indicates this defect list district that has write down, just carry out storing step with the positional information of storage about this defect list district that has write down.
8. method as claimed in claim 7 is characterized in that, described recording step also comprises:

This defect list of record in ensuing each available defect list district of described DMA.
9. method as claimed in claim 8 is characterized in that, is optional to the execution of writing down the step of described defect list in ensuing each available defect list district of described DMA.
One kind on once writing recording medium the record final management information method, described recording medium comprises temporary defect management area (TDMA) and defect management (DMA), described method comprises:

The information in the TDMA of being recorded in is sent to the DMA of described recording medium; And

Record transmission information is as final management information in described DMA, and described final management information comprises any of a plurality of defect lists that are replicated and space bitmap information or journal range information,

Wherein said recording step comprises:

In the DMA stored about from the positional information that is recorded in all the effective defect lists that are replicated defect list in the DMA.
11. method as claimed in claim 10 is characterized in that, described final management information also comprises dish definition structure (DDS) information that is recorded in the described DMA.
12. method as claimed in claim 11 is characterized in that, in described storing step, stores the part of described positional information as described DDS information.
13. method as claimed in claim 10 is characterized in that, in described storing step, described positional information about all effective defect lists comprises first physical sector number of described each effective defect list.
14. method as claimed in claim 10 is characterized in that, in described forwarding step, described recording medium is individual layer recording medium or dual-layer recording medium.
15. method as claimed in claim 10 is characterized in that, described recording step comprises:

Recording defect tabulation in the defect list district of described DMA;

Whether the defect list district that write down of checking defectiveness; And

If it is flawless that verification step indicates this defect list district that has write down, just carry out storing step with storage about this positional information of recording defect list area.
16. method as claimed in claim 15 is characterized in that, is the execution in step that a DMA repeats 7 described recording steps, verification step and recording steps.
17. an once writing recording medium comprises:

At least one recording layer; And

Temporary defect management area (TDMA) on described at least one recording layer and defect management (DMA),

Wherein send the information be recorded in the TDMA and it is recorded in the DMA as the final part of management information, and

Described final management information comprises at least one defect list, space bitmap information or continuous recording range information any, and about the positional information from an effective defect list that is recorded at least one defect list among the described DMA.
18. recording medium as claimed in claim 17 is characterized in that, described positional information about an effective defect list is about from the only positional information of an effective defect list that is recorded at least one defect list among the described DMA.
19. recording medium as claimed in claim 17 is characterized in that, described final management information also comprises dish definition structure (DDS) information that is recorded in the described DMA.
20. recording medium as claimed in claim 19 is characterized in that, stores the part of described positional information about an effective defect list as described DDS information.
21. recording medium as claimed in claim 17 is characterized in that, described positional information about an effective defect list is first physical sector number of a described effective defect list.
22. recording medium as claimed in claim 17 is characterized in that, described recording medium only has the individual layer recording medium.
23. recording medium as claimed in claim 17 is characterized in that, described recording medium has dual-layer recording medium.
24. recording medium as claimed in claim 23 is characterized in that, also comprises:

Reserved area in described DMA.
25. recording medium as claimed in claim 17 is characterized in that, described recording medium is the write-once Blu-ray disc.
26. recording medium as claimed in claim 17 is characterized in that, described DMA comprises:

First district is used for storing described positional information and space bitmap information or continuous recording range information within it; And

A plurality of second districts, each is used for randomly storage defect tabulation.
27. an once writing recording medium comprises:

At least one recording layer; And

Temporary defect management area (TDMA) on described at least one recording layer and defect management (DMA),

Wherein send the information be recorded in the TDMA and it is recorded in the DMA as the final part of management information, and

Described final management information comprises a plurality of defect lists that are replicated, space bitmap information or continuous recording range information any, and about the positional information from all effective defect lists that are recorded in the defect list that is replicated among the described DMA.
28. recording medium as claimed in claim 27 is characterized in that, described final management information also comprises dish definition structure (DDS) information that is recorded in the described DMA.
29. recording medium as claimed in claim 27 is characterized in that, stores the part of described positional information as described DDS information.
30. recording medium as claimed in claim 27 is characterized in that, described positional information about all effective defect lists comprises first physical sector number of described each effective defect list.
31. recording medium as claimed in claim 27 is characterized in that, described recording medium only has the individual layer recording medium.
32. recording medium as claimed in claim 27 is characterized in that, described recording medium has dual-layer recording medium.
33. recording medium as claimed in claim 32 is characterized in that, also comprises:

Reserved area in described DMA.
34. recording medium as claimed in claim 27 is characterized in that, described recording medium is the write-once Blu-ray disc.
35. recording medium as claimed in claim 27 is characterized in that, described DMA comprises:

First district is used for storing described positional information and space bitmap information or continuous recording range information within it; And

A plurality of second districts, each all is used for the duplicate of storage defect tabulation.
36. the device of the final management information of record on once writing recording medium, described recording medium comprises temporary defect management area (TDMA) and defect management (DMA), and described device comprises:

The recoding/reproduction unit; And

The controller that is used for controlling recording/reproduction units, this controller sends to the DMA of this recording medium to the information that is recorded in the TDMA, and writes down the part of the final management information of information conduct that is sent in described DMA,

Wherein this final management information comprises at least one defect list, space bitmap information or continuous recording range information any and about the positional information from an effective defect list that is recorded at least one defect list among the described DMA.
37. the device of the final management information of record on once writing recording medium, described recording medium comprises temporary defect management area (TDMA) and defect management (DMA), and described device comprises:

The recoding/reproduction unit; And

The controller that is used for controlling recording/reproduction units, this controller sends to the DMA of this recording medium to the information that is recorded in the TDMA, and writes down the part of the final management information of information conduct that is sent in described DMA,

Wherein this final management information comprises a plurality of defect lists that are replicated, space bitmap information or continuous recording range information any, and about the positional information from all effective defect lists that are recorded in the defect list that is replicated among the described DMA.